663452955 has 48 divisors (see below), whose sum is σ = 1262667744. Its totient is φ = 319587840.

The previous prime is 663452929. The next prime is 663452969. The reversal of 663452955 is 559254366.

663452955 is a `hidden beast` number, since 6 + 634 + 5 + 2 + 9 + 5 + 5 = 666.

It is not a de Polignac number, because 663452955 - 2¹³ = 663444763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 663452955.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73447 + ... + 81983.

It is an arithmetic number, because the mean of its divisors is an integer number (26305578).

Almost surely, 2^663452955 is an apocalyptic number.

663452955 is a deficient number, since it is larger than the sum of its proper divisors (599214789).

663452955 is a wasteful number, since it uses less digits than its factorization.

663452955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8716 (or 8713 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

The square root of 663452955 is about 25757.5805346698. The cubic root of 663452955 is about 872.1744852383.

The spelling of 663452955 in words is "six hundred sixty-three million, four hundred fifty-two thousand, nine hundred fifty-five".